Unit Installation - Bryant HRVBBLHA Installation Instructions Manual

Step 2.—Select Location
The HRV should be located in a conditioned space and
in close proximity to a fused power source. It should be
easily accessible for routine maintenance.
If HRV is installed independent of a forced ---air system, unit
should be located near the center of the air distribution
system. If HRV is installed in conjunction with a forced ---air
system, unit should be located next to (or close to) the
indoor equipment.

UNIT INSTALLATION

CAUTION: UNIT DAMAGE HAZARD
Failure to follow this caution may result in
equipment damage or improper operation.
Do not install HRV in a corrosive or
contaminated atmosphere.
Step 1.—Mount Unit
The HRV can be suspended from floor joists using chains
and 4 springs. Attach metal hanging bracket to all 4 sides
of cabinet (See Fig. 7). Unit should always be installed as
level as possible.
Fig. 7 --- Chain Spring Installation
Step 2.—Independent System Application
In the absence of a forced ---air system and a typical duct
system layout, the HRV can be applied as an independent
or stand alone unit. To ensure comfort, this type of
application involves running both fresh ---air and return ---air
registers (or stale ---air pickup registers) throughout the
home.
WARNING: CARBON MONOXIDE POISONING
HAZARD
Failure to follow this warning could result in personal
injury or death.
Do not install return---air registers (or stale---air
pickup registers) in same room as gas furnace or
water heater.
Fresh ---air registers are normally located in bedrooms,
dining room,
recommended that registers be placed 6 to 12 in. from the
ceiling on an interior wall and airflow directed toward
ceiling. If registers are floor installed, airflow should be
directed toward the wall.
Return ---air (or stale ---air pickup registers) are normally
located to draw from kitchen, bathroom, basement, or other
rooms where stale ---air can exist.
Proper size and type of registers must be used to minimize
pressure drop. The velocity of airflow through register
should not be above 400 ft/minute.
Maximum length of duct for the system should be designed
according to the highest speed of the unit. Refer to
specifications listed in unit Product Data Digest for
ventilation capacities.
Step 3.—Forced ---Air Application
Most HRV applications will be installed in conjunction with
new or existing forced ---air system. To operate properly, the
fresh ---air supply and stale ---air return from HRV connect
directly to return ---air duct system. This is how the HRV
distributes fresh air and removes stale air from inside of
building (See Fig. 8). For these installations, furnace or fan
coil blower must be interlocked and operate continuously
whenever HRV is energized.
Interlock relay is now integrated into the control and is
designed to interlock HRV with indoor equipment blower.
When HRV is energized, R and G circuit inside of furnace
or fan coil will energize.
Note: The fresh air from HRV is introduced into return ---air
duct at a point no less than 6 ft upstream of furnace or fan coil.
This connection should be direct (See Fig. 8). This is to allow
incoming fresh ---air to mix before entering indoor equipment.
Step 4.— Connect Ducts to HRV
CAUTION: PROPERTY DAMAGE HAZARD
Failure to follow this caution may result in minor
property damage from sweating duct or loss of unit
efficiency and capacity.
A92269
If HRV duct work is installed in an unconditioned
space, insulated flexible duct is required.
Insulated flexible duct is required on both fresh ---air
inlet and exhaust ---air outlet ducts connecting to
exterior wall. When using insulated flexible duct, the vapor
barrier of the flexible ducts must be taped very tight to
prevent condensation problems. To reduce pressure drop,
stretch the flex duct and support it in a proper manner to
avoid reduced airflow.
When connecting the HRV to a return ---air duct system,
insulated flexible duct can be used. However, when metal
or rigid ducts are applied use approximately 18 ---in. of
flexible duct at HRV ports for fresh ---air supply, and
stale ---air return. When using metal duct from fresh ---air
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living room, and basement. It is